Michael drives to the Vangelico Jewel store to check out the security. Lester instructs him to go in and use a pair of camera glasses to take pictures of the displays, alarm system and ventilation. Once this is done Michael drives around the back to get onto the roof via another building which is under renovation. There Michael checks out the buildings ventilation.
Michael goes back to the garment factory to meet up with Lester who shows him the two ways that Michael can go about the heist, either the loud or the smart approach; the loud approach unlocks the Carbine Rifles set up mission or choosing the smart approach unlocks the Bugstars Equipment and BZ Gas Grenades set up missions.
Note- if you choose the "Smart" approach and wish to replay the "Loud" approach setup missions later (or vice versa), you MUST create a save before this mission- while you can replay either Heist mission approach, you cannot replay the other setup missions unless you have a save you can reload.